The Snorkel TB66J is a telescopic boom lift with a 66 ft working height, equipped with a comprehensive instrument cluster to monitor engine, hydraulics, and chassis systems. Warning lights provide critical status for safe operation on job sites.
Snorkel TB66J Warning Light Symbols
| Symbol | Name | Color | What it means | What to do |
|---|---|---|---|---|
| Master Warning (Stop) | RED | A serious system fault has been detected that requires immediate shutdown of the Snorkel TB66J. | Stop the machine safely and consult the operator's manual for the associated fault code. | |
| Master Caution | AMBER | A minor system issue has been detected on the TB66J that may require attention before continuing operation. | Check the display for additional warning symbols and address the underlying cause. | |
| Check Engine (MIL) | AMBER | The TB66J's engine management system has detected a fault in the emissions or performance system. | Contact a certified dealer or run diagnostics to identify the specific error code. | |
| Engine Oil Pressure | RED | Engine oil pressure is critically low, risking severe engine damage on the Snorkel TB66J. | Immediately stop the engine and check oil level before restarting. | |
| Battery / Charging | RED | The alternator is not charging the battery or voltage is out of range in the TB66J's electrical system. | Inspect battery connections and alternator belt; if persists, service the charging system. | |
| Coolant Temperature | RED | Engine coolant temperature has exceeded safe operating limits for the Snorkel TB66J. | Stop the engine and allow it to cool; check coolant level and radiator for blockages. | |
| Hydraulic System | AMBER | Hydraulic fluid level is low or temperature is high, affecting boom and platform functions on the TB66J. | Check hydraulic oil level and inspect for leaks; allow system to cool if overheated. | |
| Parking Brake | RED | The parking brake is engaged or a fault in the brake system is detected on the TB66J. | Release the parking brake before driving, or service the brake if light remains on. | |
| Seat Belt | RED | The operator's seat belt is not fastened while the Snorkel TB66J is in motion. | Fasten the seat belt before driving or operating the platform. | |
| Glow Plug / Preheat | AMBER | The engine preheat system is active or has a fault in cold-start conditions on the TB66J. | Wait for the light to go out before cranking the engine if preheating; if flashing, service glow plugs. | |
| Low Fuel | AMBER | Fuel level is low and may cause engine stalling or air in the fuel system on the TB66J. | Refuel as soon as possible to avoid running out during operation. | |
| Water in Fuel | AMBER | Water has been detected in the diesel fuel, which can damage the injection system on the TB66J. | Drain the water separator or replace the fuel filter immediately. | |
| Air Filter | AMBER | The engine air filter is restricted and needs cleaning or replacement on the Snorkel TB66J. | Replace or clean the air filter to prevent reduced engine performance. | |
| Hydraulic Oil | RED | Hydraulic oil level is critically low, risking pump damage and loss of boom control on the TB66J. | Stop the machine and add hydraulic oil; inspect for leaks before resuming. | |
| Mast / Lift Limit | AMBER | The boom has reached a maximum extension or angle limit on the Snorkel TB66J. | Retract or lower the boom slightly to clear the limit condition. | |
| Overload / Capacity | RED | The platform load exceeds the rated capacity, triggering safety shutdown on the TB66J. | Remove excess weight from the platform immediately; the machine may lower automatically. | |
| Swing / Slew Lock | BLUE | The turntable swing lock is engaged for transport or stabilization on the Snorkel TB66J. | Disengage the swing lock before operating the boom rotation. | |
| Beacon / Rotating Light | GREEN | The rotating beacon is active to warn nearby personnel of the TB66J's operation. | No action required; verify beacon is working for safety compliance. | |
| Work Lights | GREEN | Work lights are switched on for visibility during low-light operations on the TB66J. | No action needed; use as required for the job. |
19 symbols shown. Icons follow ISO 2575 dashboard standards; exact graphics vary by model year.
Most Important Warning Lights
Engine Overheating
Common causes
- Low coolant level
- Clogged radiator fins
- Failed cooling fan
What to do
Stop the engine immediately on the Snorkel TB66J. Allow cooling, then check coolant level and refill if low; clean radiator debris; inspect fan belt tension.
Hydraulic System Failure
Common causes
- Low hydraulic oil
- Contaminated oil
- Leaking hose
What to do
Shut down the TB66J and check hydraulic oil level (dipstick near engine). Top off with AW-46 oil if low; replace filter if contaminated; tighten or replace any leaking hose fittings.
Engine Cranks But Won't Start
Common causes
- Air in fuel system
- Faulty glow plugs (cold weather)
- Fuel filter clogged
What to do
Prime the fuel system by operating the manual primer pump on the TB66J's fuel filter head. If cold, cycle glow plugs longer; replace fuel filter if overdue.
Platform Won't Lift or Drive
Common causes
- Low battery voltage
- Hydraulic oil cold and thick
- Master caution active
What to do
Check battery voltage (min 12.4V) on the TB66J; warm hydraulic oil by idling engine for 5 minutes in cold weather; clear any amber warning lights on the cluster.
Overload Alarm Stays On With Empty Platform
Common causes
- Faulty load sensor
- Debris on platform
- Boom binding
What to do
Remove any debris from the Snorkel TB66J platform. If light persists, recalibrate the load sensing system or inspect boom for obstructions; contact service if unresolved.
Frequently Asked Questions
How do I reset the master warning light on my Snorkel TB66J?
The master warning light clears automatically after the fault is resolved. Check the display for the specific warning; if all indicators are normal, restart the engine to reset.
Why does my TB66J have reduced power or slow boom movement?
This is often due to low hydraulic oil level, a clogged air filter, or the engine running in limp mode. Check the instrument cluster for amber lights and service as needed.
What does the yellow 'air filter' light indicate?
It means the engine air filter is restricted. Replace the air filter element under the engine cover on your Snorkel TB66J to restore full power and prevent engine damage.
Can I drive the TB66J with the parking brake light on?
No. If the light shows red, the parking brake is engaged or there is a brake system fault. Release the brake lever; if light stays, service the brake switch or system before moving.
How often should I check hydraulic oil on the Snorkel TB66J?
Check the hydraulic oil level daily through the sight gauge on the tank. Keep the level between the min and max marks to ensure proper boom and drive operation.